The Mainz Minipressen Fair is an open forum for small publishers and experimental bookmakers in the city of Gutenberg. With the exception of a registration fee for exhibitors (depending on the size of the stand), it is free of charge.

As a sales fair, exhibitors are free to sell their products on all days of the fair. There are 200 exhibition spaces available. The spaces are allocated according to theme and are assigned in the order in which registrations are received. There is no entitlement to an exhibition space.